One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,5,10,6,9,4,8)(3,11,12,16,13,7,14,15)(17,18)(19,27)(20,24)(21,25)(22,26)(23,28)(29,31)(30,32)(1,3)(2,7)(4,12)(5,14)(6,13)(8,15)(9,11)(10,16)(17,19)(18,23)(20,28)(21,30)(22,29)(24,31)(25,27)(26,32) involution — undirected(1,4,6,5)(2,8,9,10)(3,12,13,14)(7,15,11,16)(17,18)(19,23)(20,25)(21,24)(22,26)(27,28)(29,32)(30,31)(17,20,22,21)(18,24,26,25)(19,28,29,30)(23,31,32,27)(2,9)(7,11)(8,10)(15,16)(17,20,22,21)(18,25,26,24)(19,28,29,30)(23,27,32,31)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.